diff --git a/src/delta_barth/analysis/forecast.py b/src/delta_barth/analysis/forecast.py
index 3790c2b..000a07b 100644
--- a/src/delta_barth/analysis/forecast.py
+++ b/src/delta_barth/analysis/forecast.py
@@ -436,7 +436,7 @@ def pipeline_sales_forecast(
     pipe = _process_sales(
         pipe,
         min_num_data_points=SALES_MIN_NUM_DATAPOINTS,
-        base_num_data_points_months=SESSION.cfg.forecast.threshold_month_data_points,
+        base_num_data_points_months=session.cfg.forecast.threshold_month_data_points,
     )
     if pipe.statistics is not None:
         res = _write_sales_forecast_stats_wrapped(pipe.statistics)